Alert archive / Kansas / Tornado Warnings in 2017

Tornado Warning 18, NWS Topeka, KS

October 6, 2017Cloud County, Ottawa County, Kansas

NWS Topeka, KS issued this tornado warning at Oct 6, 2017, 7:16 PM CDT for Cloud County, Ottawa County, Kansas. It was in force for 29 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Oct 6, 2017, 7:16 PM CDT (00:16 UTC)
Expired: Oct 6, 2017, 7:45 PM CDT
In force: 29 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Cloud County, KS, Ottawa County, KS

The radar

The Grand Island radar (KUEX), 112 km from the middle of the area, began a volume at 00:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Oct 6, 7:40 PM CDT	TSTM WND GST 60	Glasco, KS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 6, 3:47 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 0.3 hours before the alert went out and 197 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 773 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 278 m²/s²
0-3 km storm-relative helicity: 421 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 13.4

Open this sounding in Storm Lab

The text

As transmitted.

125 
WFUS53 KTOP 070016
TORTOP
KSC029-143-070045-
/O.NEW.KTOP.TO.W.0018.171007T0016Z-171007T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
716 PM CDT FRI OCT 6 2017

The National Weather Service in Topeka has issued a

* Tornado Warning for...
  Northwestern Ottawa County in north central Kansas...
  Southwestern Cloud County in north central Kansas...

* Until 745 PM CDT
    
* At 716 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles southwest of Asherville, moving northeast at 40
  mph.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Glasco around 730 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3951 9793 3955 9777 3928 9773 3926 9793
TIME...MOT...LOC 0016Z 234DEG 35KT 3936 9806 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Cohen

3 follow-up statements

592 
WWUS53 KTOP 070025
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
725 PM CDT FRI OCT 6 2017

KSC029-143-070045-
/O.CON.KTOP.TO.W.0018.000000T0000Z-171007T0045Z/
Ottawa-Cloud-
725 PM CDT FRI OCT 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
NORTHWESTERN OTTAWA AND SOUTHWESTERN CLOUD COUNTIES...
    
At 724 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Simpson, moving northeast at 35 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This dangerous storm will be near...
  Glasco around 735 PM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3951 9793 3955 9777 3928 9773 3926 9793
TIME...MOT...LOC 0024Z 246DEG 30KT 3938 9797 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Cohen

999 
WWUS53 KTOP 070032
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
732 PM CDT FRI OCT 6 2017

KSC143-070041-
/O.CAN.KTOP.TO.W.0018.000000T0000Z-171007T0045Z/
Ottawa-
732 PM CDT FRI OCT 6 2017

...THE TORNADO WARNING FOR NORTHWESTERN OTTAWA COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
north central Kansas.

LAT...LON 3951 9793 3955 9777 3931 9773 3931 9793
TIME...MOT...LOC 0031Z 234DEG 37KT 3943 9790 

$$

KSC029-070045-
/O.CON.KTOP.TO.W.0018.000000T0000Z-171007T0045Z/
Cloud-
732 PM CDT FRI OCT 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHWESTERN CLOUD COUNTY...
    
At 731 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Simpson, moving northeast at 40 mph.

HAZARD...Tornado and quarter size hail. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
southwestern Cloud County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3951 9793 3955 9777 3931 9773 3931 9793
TIME...MOT...LOC 0031Z 234DEG 37KT 3943 9790 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Cohen

351 
WWUS53 KTOP 070042
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
742 PM CDT FRI OCT 6 2017

KSC029-070049-
/O.EXP.KTOP.TO.W.0018.000000T0000Z-171007T0045Z/
Cloud-
742 PM CDT FRI OCT 6 2017

...THE TORNADO WARNING FOR SOUTHWESTERN CLOUD COUNTY WILL EXPIRE AT
745 PM CDT...
                
The risk for a tornado is decreasing, and the Tornado Warning will 
be allowed to expire. However, a Severe Thunderstorm Warning remains 
in effect.

A Severe Thunderstorm Watch also remains in effect until 1100 PM CDT 
for north central Kansas.

LAT...LON 3951 9793 3955 9777 3931 9773 3931 9793
TIME...MOT...LOC 0039Z 234DEG 35KT 3947 9782 

$$

Cohen

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 6, 7:44 PM CDT	Severe Thunderstorm Warning	TOP	Cloud, Ottawa	61 min
Oct 6, 7:49 PM CDT	Tornado Warning	TOP	Cloud	26 min
Oct 6, 8:21 PM CDT	Severe Thunderstorm Warning	TOP	Clay, Republic, Washington	39 min
Oct 6, 8:44 PM CDT	Special Weather Statement	TOP	Washington	31 min
Oct 6, 8:56 PM CDT	Severe Thunderstorm Warning	TOP	Ottawa	34 min
Oct 6, 9:17 PM CDT	Special Weather Statement	TOP	Clay, Dickinson, Geary, Riley	28 min
Oct 6, 9:21 PM CDT	Tornado Warning	TOP	Clay, Dickinson, Ottawa	9 min
Oct 6, 9:47 PM CDT	Special Weather Statement	TOP	Geary, Pottawatomie, Riley	43 min
Oct 6, 9:55 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Pottawatomie, Riley, Wabaunsee	35 min
Oct 6, 10:17 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Marshall, Nemaha, Pottawatomie	28 min
Oct 7, 3:34 AM CDT	River Flood Warning	TOP	Marshall	44 hr
Oct 7, 2:20 PM CDT	River Flood Warning	TOP	Clay	19 hr

Nearby

Tornado Warnings in Kansas, 2017 Every tornado warning in 2017 Tornadoes in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.